]> Pileus Git - ~andy/linux/blobdiff - net/dccp/options.c
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6
[~andy/linux] / net / dccp / options.c
index bedb5daaa3c5da7188e2362a42f8950d55643a16..43bc24e761d0e707fca63a4404e061c270a071bc 100644 (file)
@@ -107,9 +107,11 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
                 *
                 * CCID-specific options are ignored during connection setup, as
                 * negotiation may still be in progress (see RFC 4340, 10.3).
+                * The same applies to Ack Vectors, as these depend on the CCID.
                 *
                 */
-               if (dreq != NULL && opt >= 128)
+               if (dreq != NULL && (opt >= 128 ||
+                   opt == DCCPO_ACK_VECTOR_0 || opt == DCCPO_ACK_VECTOR_1))
                        goto ignore_option;
 
                switch (opt) {
@@ -132,6 +134,8 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
                case DCCPO_CHANGE_L:
                        /* fall through */
                case DCCPO_CHANGE_R:
+                       if (pkt_type == DCCP_PKT_DATA)
+                               break;
                        if (len < 2)
                                goto out_invalid_option;
                        rc = dccp_feat_change_recv(sk, opt, *value, value + 1,
@@ -148,7 +152,9 @@ int dccp_parse_options(struct sock *sk, struct dccp_request_sock *dreq,
                case DCCPO_CONFIRM_L:
                        /* fall through */
                case DCCPO_CONFIRM_R:
-                       if (len < 2)
+                       if (pkt_type == DCCP_PKT_DATA)
+                               break;
+                       if (len < 2)    /* FIXME this disallows empty confirm */
                                goto out_invalid_option;
                        if (dccp_feat_confirm_recv(sk, opt, *value,
                                                   value + 1, len - 1))